Manandhar, S., and B. Pant. “<i>In vitro</i> Propagation of High Altitude Plant, <i>Heracleum wallichii</I> DC”. Botanica Orientalis: Journal of Plant Science, vol. 4, no. 1, Aug. 2007, pp. 13-15, https://nepjol.info/index.php/BOTOR/article/view/532.